Redesigning Xen's Memory Sharing Mechanism for Safe and Efficient I/O Virtualization

 
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Old 03-22-2010
Redesigning Xen's Memory Sharing Mechanism for Safe and Efficient I/O Virtualization

HPL-2010-39 Redesigning Xen's Memory Sharing Mechanism for Safe and Efficient I/O Virtualization - Ram, Kaushik Kumar; Santos, Jose Renato; Turner, Yoshio
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Abstract: Xen's memory sharing mechanism, called the grant mechanism, is used to share I/O buffers in guest domains' memory with a driver domain. Previous studies have identified the grant mechanism as a significant source of network I/O overhead in Xen. This paper describes a redesigned grant mechanism to si ...
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XEN-UPDATE-IMAGE(8)					 Perl Programmers Reference Guide				       XEN-UPDATE-IMAGE(8)

NAME
xen-update-image - Update the software installed upon offline Xen images. SYNOPSIS
xen-update-image [options] imageName1 imageName2 .. imageNameN Help Options: --help Show this scripts help information. --manual Read this scripts manual. --version Show the version number and exit. General Options: --dir Specify the directory which contains the image(s). --lvm Specify the LVM volume group which contains the image(s). --evms Specify the EVMS container which contains the image(s). OPTIONS
--dir Specify the directory which contains the image(s). --evms Specify the EVMS container which contains the image(s). --help Show the script help. --lvm Specify the LVM volume group which contains the image(s). --manual Read the manual. --version Show the version number and exit. DESCRIPTION
xen-update-image is a simple script which allows you to update a Xen image of Debian which has been created with xen-create-image. It does this by mounting the image inside a temporary directory then running: apt-get update apt-get upgrade NOTE If the image is already running within Xen this will cause corruption otherwise it will allow you to update your image without booting it. EXAMPLES
The following assumes there are two images which are not currently running. The images are called 'test.my.flat', and 'x11.my.flat'. Updating both images can be accomplished by executing: xen-update-images --dir=/home/xen test.my.flat x11.my.flat AUTHORS
Steve Kemp, http://www.steve.org.uk/ Axel Beckert, http://noone.org/abe/ StA~Xphane Jourdois LICENSE
Copyright (c) 2005-2009 by Steve Kemp, (c) 2010 by The Xen-Tools Development Team. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The LICENSE file contains the full text of the license. 4.3.1 2012-06-30 XEN-UPDATE-IMAGE(8)